Wear-resistant self-lubricating bearing

Abstract

The utility model discloses a wear-resistant self-lubricating bearing, which relates to the bearing field, and comprises a bearing outer ring and a bearing inner ring embedded in the bearing outer ring, the center of the outer wall of the bearing inner ring is provided with a wear-resistant groove, and the two ends of the bearing inner ring are provided with filling holes in an annular array. And a polytetrafluoroethylene wear-resisting ring embedded in the wear-resisting groove is detachably fixed to the inner wall of the bearing outer ring, and lubricating cavities communicating with the filling hole are formed in the two sides of the inner wall of the bearing outer ring correspondingly. A lubricating film is formed in the friction using process through the polytetrafluoroethylene wear-resisting ring, good wear resistance and lubricity are achieved, meanwhile, metal chippings cannot be generated when the polytetrafluoroethylene wear-resisting ring is abraded, the service life of the bearing is prolonged, and the service life of the bearing is prolonged. The contact area between the bearing outer ring and the two sides of the bearing inner ring is reduced through the lubricant in the lubricating cavity, and the wear resistance of the bearing is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing field, concretely is a kind of wear-resistant self-lubricating bearing. BACKGROUND

[0002] Bearing is the most common rotating component in mechanical equipment, which can effectively reduce the rotating friction between connecting parts, thereby avoiding the rapid wear of parts to affect the service life of equipment. Bearing cannot automatically add and apply during use, which cannot add lubricating oil in time, so that the bearing parts wear quickly.

[0003] The patent with application number 202221351549.1 discloses a wear-resistant self-lubricating bearing, which comprises a bearing inner ring, a bearing outer ring and a dust cover. The outer side of the bearing inner ring is provided with the bearing outer ring, and the side between the bearing inner ring and the bearing outer ring is provided with the dust cover. It also comprises a retainer arranged between the bearing inner ring and the bearing outer ring, and the retainer has a hole structure in which a ball is arranged. An oil storage tank is opened in the inside of the bearing inner ring. An oil injection hole is opened in the side wall of the bearing inner ring, and the inner side of the oil injection hole is connected with a sealing bolt. An oil discharge hole is opened in the arc outer wall of the bearing inner ring, and the inner side of the oil discharge hole is provided with a plug, and the plug and the inner wall of the oil storage tank are connected with an air bag.

[0004] The above technical solution uses lubricating oil to lubricate the bearing. However, metal debris will appear due to wear during rotation of the bearing, and the metal debris will exacerbate the wear of the bearing with rotation of the bearing, thereby seriously affecting the service life of the bearing. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims to provide a wear-resistant self-lubricating bearing to solve the technical problem that metal debris will appear due to wear during rotation of the bearing, and the metal debris will exacerbate the wear of the bearing with rotation of the bearing, thereby seriously affecting the service life of the bearing.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a wear-resistant self-lubricating bearing, comprising a bearing outer ring and a bearing inner ring embedded in the bearing outer ring. A wear-resistant groove is opened at the center position of the outer wall of the bearing inner ring, and an injection hole is opened in the form of a ring array at both ends of the bearing inner ring. A polytetrafluoroethylene wear-resistant ring is embedded in the wear-resistant groove and detachably fixed to the inner wall of the bearing outer ring. Lubricating cavities are provided on both sides of the inner wall of the bearing outer ring and communicated with the injection holes.

[0007] The utility model is further provided with a second groove opened on both sides of the inner wall of the bearing outer ring, and a first groove corresponding to the second groove is opened on both sides of the outer wall of the bearing inner ring.

[0008] The utility model further sets up, the first recess and the second recess between inlaying are provided with cover plate, the outer wall of cover plate is connected with second recess and is fixed.

[0009] The utility model further sets up, the both ends of bearing inner ring are all set up and are filled with the injection channel of annular structure, a plurality of injection hole is connected with two injection channels.

[0010] The utility model further sets up, the lateral wall of bearing inner ring is set up and is communicated with the sealed hole of injection channel, the sealed hole is inserted with sealed bolt in screw thread.

[0011] The utility model further sets up, the inner wall of bearing outer ring is set up and is communicated with the screw hole of annular array, the inner wall of polytetrafluoroethylene wear ring is set up and is communicated with the accommodation groove of a plurality of screw holes.

[0012] The utility model further sets up, the accommodation cavity groove is inlayed with fastening bolt, and fastening bolt is inserted in screw hole through polytetrafluoroethylene wear ring in screw thread.

[0013] Summarized above, the utility model mainly has following beneficial effects: the utility model discloses a polytetrafluoroethylene wear ring inlayed in wear groove is fixed on the inner wall of bearing outer ring, and the polytetrafluoroethylene wear ring forms lubricating film in the process of using friction, has good wear resistance and lubricity, and metal debris is not produced when the polytetrafluoroethylene wear ring wears, and the service life of bearing is improved;Lubricating cavity is set up between bearing outer ring and bearing inner ring, and lubricant is filled between lubricating cavity through sealed hole, injection channel and injection hole, and the cover plate of bearing outer ring lateral wall can block lubricant, reduces the loss of lubricant, and the contact area of bearing outer ring and bearing inner ring two sides is reduced through lubricant in lubricating cavity, and the wear resistance of bearing is improved. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is the split structure schematic diagram of the utility model;

[0016] Figure 3 It is the cross section structure schematic diagram of bearing inner ring of the utility model;

[0017] Figure 4 It is the cross section structure schematic diagram of bearing outer ring of the utility model.

[0018] In the diagram: 1. Bearing outer ring; 2. Bearing inner ring; 3. Cover plate; 4. Filling hole; 5. First groove; 6. Wear groove; 7. Second groove; 8. Sealing bolt; 9. Sealing hole; 10. Filling channel; 11. Polytetrafluoroethylene wear ring; 12. Fastening bolt; 13. Receiving groove; 14. Screw hole; 15. Lubrication cavity. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] A wear-resistant self-lubricating bearing, such as Figures 1-4 As shown, the bearing includes an outer ring 1 and an inner ring 2 embedded in the outer ring 1. A wear-resistant groove 6 is provided at the center of the outer wall of the inner ring 2, and filling holes 4 are provided in a ring array at both ends of the inner ring 2. A polytetrafluoroethylene wear-resistant ring 11 embedded in the wear-resistant groove 6 is detachably fixed to the inner wall of the outer ring 1, and a lubrication cavity 15 communicating with the filling hole 4 is provided on both sides of the inner wall of the outer ring 1.

[0021] The inner wall of the bearing outer ring 1 has a second groove 7 on both sides, and the outer wall of the bearing inner ring 2 has a first groove 5 on both sides corresponding to the second groove 7. A cover plate 3 is embedded between the first groove 5 and the second groove 7. The outer wall of the cover plate 3 is snapped and fixed to the second groove 7. Both ends of the bearing inner ring 2 have a ring-shaped filling channel 10. Multiple filling holes 4 are connected to two filling channels 10 respectively. Lubricant is added to the lubrication cavity 15 through the sealing hole 9, the filling channel 10 and the filling hole 4. The cover plate 3 on the side wall of the bearing outer ring 1 can block the lubricant and reduce the loss of lubricant. The lubricant in the lubrication cavity 15 reduces the contact area between the outer ring 1 and the inner ring 2.

[0022] Furthermore, the inner ring 2 of the bearing has a sealing hole 9 on its side wall that communicates with the filling channel 10. A sealing bolt 8 is threaded into the sealing hole 9. The inner wall of the outer ring 1 of the bearing has a ring array of threaded holes 14. The inner wall of the polytetrafluoroethylene wear-resistant ring 11 has multiple receiving grooves 13 corresponding to the threaded holes 14. Fastening bolts 12 are embedded in the receiving grooves. The fastening bolts 12 pass through the polytetrafluoroethylene wear-resistant ring 11 and are threaded into the threaded holes 14. The polytetrafluoroethylene wear-resistant ring 11 forms a lubricating film during use and friction, which has good wear resistance and lubricity. At the same time, the polytetrafluoroethylene wear-resistant ring 11 does not produce metal debris when it wears, thus improving the service life of the bearing.

[0023] The utility model discloses a working principle: when using, unscrew sealing bolt 8, through sealing hole 9, filling passageway 10 and filling hole 4 between filling lubricant, the cover plate 3 of bearing outer ring 1 side wall can carry out the barrier to lubricant, reduce the loss of lubricant, the lubricant in lubricating chamber 15 reduces the contact area of bearing outer ring 1 and bearing inner ring 2 both sides, when bearing outer ring 1 and bearing inner ring 2 rotate each other, the wear -resistant groove 6 of bearing inner ring 2 and polytetrafluoroethylene wear ring 11 contact friction, polytetrafluoroethylene wear ring 11 forms lubricating film in the process of using friction, has good wear resistance and lubricity, and polytetrafluoroethylene wear ring 11 will not produce metal scrap when wearing, has improved the service life of bearing, the inner wall of bearing inner ring 2 is provided with through -hole, and polytetrafluoroethylene wear ring wears, through rotating bearing inner ring 2 makes through -hole correspond with multiple fastening bolts 12 respectively, unscrews fastening bolt 12 from the screw hole 14, to separate bearing inner ring 2, polytetrafluoroethylene wear ring and bearing outer ring 1 each other.

[0024] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and are not the limitation of the utility model, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in the suitable way, and the person skilled in the art can make the modification, replacement and change etc. without the creative contribution after reading the specification without departing from the principles and the purpose of the utility model, but as long as in the patent right claim range of the utility model is protected by the patent law.

Claims

1. A wear resistant self-lubricating bearing comprising a bearing outer ring (1) and a bearing inner ring (2) which is arranged in the bearing outer ring (1) in a manner of being embedded, characterized in that: The outer wall of the bearing inner ring (2) is provided with a wear-resistant groove (6) at the center position, and both ends of the bearing inner ring (2) are provided with an annular array of filling holes (4), the inner wall of the bearing outer ring (1) is detachably fixed with a polytetrafluoroethylene wear-resistant ring (11) embedded in the wear-resistant groove (6), and both sides of the inner wall of the bearing outer ring (1) are provided with lubricating cavities (15) communicating with the filling holes (4).

2. A wear-resistant self-lubricating bearing according to claim 1, characterized in that: The inner wall of the bearing outer ring (1) is provided with a second groove (7) on both sides, and the outer wall of the bearing inner ring (2) is provided with a first groove (5) corresponding to the second groove (7).

3. A wear-resistant self-lubricating bearing according to claim 2, characterized in that: The first groove (5) and the second groove (7) are provided with a cover plate (3) embedded therebetween, and the outer wall of the cover plate (3) is clamped and fixed with the second groove (7).

4. The wear-resistant self-lubricating bearing of claim 1, wherein: Both ends of the bearing inner ring (2) are provided with an annular filling channel (10), and a plurality of filling holes (4) are respectively communicated with the two filling channels (10).

5. A wear-resistant self-lubricating bearing according to claim 4, characterized in that: The side wall of the bearing inner ring (2) is provided with a sealing hole (9) communicated with the filling channel (10), and the sealing hole (9) is screwed with a sealing bolt (8).

6. A wear-resistant self-lubricating bearing according to claim 1, characterized in that: The inner wall of the bearing outer ring (1) is provided with a screw hole (14) in an annular array, and the inner wall of the polytetrafluoroethylene wear-resistant ring (11) is provided with a plurality of accommodating grooves (13) corresponding to the screw hole (14).

7. A wear-resistant self-lubricating bearing according to claim 6, characterized in that: The accommodating groove (13) is embedded with a fastening bolt (12), and the fastening bolt (12) is screwed in the screw hole (14) through the polytetrafluoroethylene wear-resistant ring (11).

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